topic Re: Feedback on the new UI: corner rounding, dark theme, and window density in Discussions

Feedback on the new UI: corner rounding, dark theme, and window density

DmitryGRC — Tue, 15 Sep 2026 05:26:34 GMT

Please reduce the corner radius of tabs and other UI elements. This is one of the things I really hate about Chrome. Alternatively, at least consider adding an option in the Appearance tab in the future to adjust the corner radius. I think this would suit most users.

Also, the rounded menus have some issues because the entire interface hasn’t been fully updated to accommodate them. Some parts look incorrect, as shown in the screenshot.

I also don’t really like the new default dark theme. The top bar, at least on macOS, stands out too much. I think it would be better to keep it as a solid color like it was before.

That said, thanks for the “Window density” feature! I used to do this through CSS in my theme, and now there’s finally a proper built-in option for it.

Re: Feedback on the new UI: corner rounding, dark theme, and window density

Agentvirtuel — Tue, 15 Sep 2026 05:57:01 GMT

Bonjour

For illustration userChrome.css
https://www.youtube.com/watch?v=OJF6i0OsEXA

https://connect.mozilla.org/t5/firefox-labs/can-you-stop-putting-adverts-in-the-menus/td-p/136978

Re: Feedback on the new UI: corner rounding, dark theme, and window density

DmitryGRC — Tue, 15 Sep 2026 06:14:37 GMT

On Auto, yes, I get the same view as in your video.

The issue appears when "Window density -> Compact" is enabled. Please try Compact mode. I don't have a "chrome.css" or any custom UI modifications enabled, so this is happening with the default Firefox UI.

I'm not referring to the "Sign in to sync" message — that doesn't bother me. I'm referring specifically to the UI elements shown in the screenshot when "Window density -> Compact" is enabled.

Re: Feedback on the new UI: corner rounding, dark theme, and window density

Agentvirtuel — Tue, 15 Sep 2026 07:46:14 GMT

I tried Window density (sorry for the quality of the video).
https://www.youtube.com/watch?v=qe3o1PLuzuI

Compact mode, below.

Re: Feedback on the new UI: corner rounding, dark theme, and window density

MarcinGajda36 — Tue, 15 Sep 2026 07:52:35 GMT

Yes +1 from me. The new look of rounded edges and new dark theme are a lot worse for me as well

Re: Feedback on the new UI: corner rounding, dark theme, and window density

fireferret — Tue, 15 Sep 2026 09:14:49 GMT

My Firefox Developer Edition just updated to 157.0b1, and it came with the new Nova UI/UX. Am not keen on it.

Things I don't like:
- the gradient in the title/tab bar. (Don't want a gradient)
- the gradient on the border of the selected tab. (Don't want a gradient)
- the radius on the border of the selected tab - way too big.

My theme is called "Dark" (standard theme from Mozilla, v1.3.4).
Windows 11.

I've resorted to browser.nova.enabled = false to go back to the old UI.

I'm one of those that doesn't like the design of the "Sign in to synchronise" at the top of the 3 bar menu: it stands out too much. For me: get rid of the "fox" and the background purple. Just have a regular menu item, "Sign in". If you want to promote "Sync" functionality, do it in the "What's new" pages.

We all have our own views...

Regards

Re: Feedback on the new UI: corner rounding, dark theme, and window density

Agentvirtuel — Tue, 15 Sep 2026 16:47:20 GMT

Bonsoir

https://support.mozilla.org/en-US/questions/1604380
Screenshot Firefox Developer Edition

Re: Feedback on the new UI: corner rounding, dark theme, and window density

DmitryGRC — Tue, 15 Sep 2026 17:25:13 GMT

In your second video, when you switched to Compact mode, the same visual issue is clearly visible: the rounded elements at the top of the banner go outside the rounded corners of the context menu, creating broken/clipped geometry (as shown in my screenshot).

I could easily fix this for myself using userChrome.css, but Firefox is a mainstream product. It should look clean and work properly out of the box for everyone, not just for power users who have the time to modify their CSS.

As far as I know, Mozilla's official website says this is the right place to submit feedback. I posted my suggestions about the latest update because I hope the developers might actually take a look at them. The chances may be small, but I've seen this work before - TeamSpeak fixed technical issues based on my feedback.

I just want to bring these UX issues and obvious rendering problems to the developers' attention.

Re: Feedback on the new UI: corner rounding, dark theme, and window density

Agentvirtuel — Tue, 15 Sep 2026 17:48:02 GMT

To complement

A space for users to give product feedback
https://support.mozilla.org/en-US/kb/what-mozilla-connect

As for me
Automatic (default)
Standard
Compact
Touch